package com.wu;

import java.util.ArrayList;

/**
 * @program: jdk8
 * @author: wulei
 * @create: 2023-01-31 17:04
 */
public class Test1 {
    public static void main(String[] args) {
        ArrayList<String> list = new ArrayList<>();
        list.add("232");
        Object[] arr = new Object[10];
        System.out.println(arr.length);
        System.out.println(list.get(0));
    }
}
